Streptococcus pneumonia is the leading cause of bacterial pneumonia. It can enter your lungs through inhalation or through your bloodstream. There is a vaccination for this type. Haemophilus influenzae is the second most common cause of bacterial pneumonia.
The droppings are similar in color to the wood residue that the insects spill as they eat. Subterranean termite droppings are soft and used in constructing nests, whereas drywood termite droppings are hard and look like piles of sawdust, according to Extension.org.
Insect exoskeletons may be seen in the scat. Droppings tend to be 2-3 inches long and 1/2-inch wide (like a dog's) and are often filled with remnants of what they have been eating lately. For example, if they are eating corn, you will often find corn remnants in the droppings.